Verfahren zum Steuern des Registers von bedruckten Bildern in einem Drucker

The printer has at least two printing stations (102, 104, 106, 108) which cause images to be printed on a substrate (110). The printer is capable of registration adjustment. First and second patterns (116) of spaced registration marks are printed onto the substrate (110) by operation of the printing...

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Bibliographische Detailangaben
1. Verfasser:	VAN WEVERBERG, ERIK G. G
Format:	Patent
Sprache:	ger
Schlagworte:	CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PRINTING PRINTING MACHINES OR PRESSES SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	The printer has at least two printing stations (102, 104, 106, 108) which cause images to be printed on a substrate (110). The printer is capable of registration adjustment. First and second patterns (116) of spaced registration marks are printed onto the substrate (110) by operation of the printing stations (102, 104, 106, 108). The second pattern (116) partially overlaps the first pattern (112) to form a composite pattern (120) of registration marks. The composite pattern (120) is illuminated and the reflectivity thereof is examined at wavelengths complementary to the colours of the first and second patterns to obtain a reflectivity signature (SM) for the composite pattern (120). The reflectivity signature (SM) of the composite pattern (120) is compared with a predetermined signature (SO) to determine an adjustment factor (fm, fc, fy) for the printer.